“Mr. House is my second personality,” said Woodrow Wilson early in his Presidency. Then, as the Paris Peace Conference proceeded, the friendship dissolved —for reasons that have never been fully understood. As he lay dying in 1938, Colonel House gave his explanation to President Charles Seymour of Yale, editor of his Intimate Papers , with the understanding that it remain secret for 25 years after his death. Here, for the first time, it is revealed.